Not in elements that I know of, elements is pretty limited on that side... but why 60fps anyway? If you don't use something like twixtor or don't speed up a LOT (at least 200% most clips, I'd say), then it's pretty much useless and it'll only waste space + being hard to playback on older PCs.

speed is the issue for me. Also, playing around in 30fps, I found it to be a little too imprecise when it comes to doing real anal sync. Like sixteenth notes or so.

I had an interesting idea. I could take my music and slow it down to 50% speed, edit like that in 30fps and then speed up the result to 60. Not practical, but it may keep me from getting tired of the song.